發(fā)布時間：2018-03-31 00:36

  本文選題：運動員　切入點：中樞疲勞　出處：《中國運動醫(yī)學雜志》2016年09期

【摘要】：目的:探究腦波超慢漲落技術(shù)(ET)是否可有效檢測認知加工任務(wù)誘發(fā)的中樞疲勞,以及ET疲勞指數(shù)與心率變異性(HRV)、行為學指標和主觀體力感覺量表(RPE)之間的關(guān)系。方法:以是否執(zhí)行Flanker任務(wù)為自變量,RPE量表、行為學數(shù)據(jù)(正確率和反應(yīng)時)、HRV、ET指標為因變量,以35名大學生運動員為被試(20名為實驗組、15名為對照組),進行組間、時間序列縱向?qū)嶒炘O(shè)計。結(jié)果:RPE結(jié)果顯示測試時間的主效應(yīng)顯著,F(1,33)=30.93,P0.001,η~2=0.48。組別的主效應(yīng)顯著,F(1,33)=44.55,P0.001,η~2=0.57。測試時間和組別有交互作用,F(1,33)=22.72,P0.001,η~2=0.41。疲勞組正確率在不同時段有顯著性差異,F(3,42)=35.83,P0.001,η~2=0.73。反應(yīng)時在不同時段差異性差異,F(3,42)=24.08,P0.001,η~2=0.68。除竇性心搏RR間期標準差(SDNN)外(P0.05),HRV各指標在不同時段差異性顯著。ET與RPE呈顯著性正相關(guān),ET與心率變異性中的低頻(LF)、高頻(HF)、低頻高頻比(LF/HF)均呈中度相關(guān),ET與SDNN、相鄰RR間期差值的均方根(RMSSD)無顯著性相關(guān),ET與反應(yīng)時呈中度正相關(guān),與正確率無顯著性相關(guān)。此外,正確率和反應(yīng)時呈現(xiàn)正相關(guān)。結(jié)論:1小時的Flanker任務(wù)可以誘導(dǎo)中樞疲勞,可將31~45 min作為應(yīng)激反應(yīng)期,46~60 min作為重度疲勞期;實驗室認知操作任務(wù)誘發(fā)的中樞疲勞可以引起神經(jīng)遞質(zhì)變化并且這種變化可以通過ET檢測;ET疲勞指數(shù)與HRV指標、行為學指標和RPE測試結(jié)果具有相關(guān)性,可綜合運用上述指標全面評價運動員中樞疲勞。
[Abstract]:Objective: to investigate whether the brain wave ultra-slow fluctuation technique (ETT) can effectively detect the central fatigue induced by cognitive processing tasks. The relationship between et fatigue index and HRVV, behavioral index and subjective physical sensation scale (RPE). Methods: using Flanker task as independent variable and behavioral data (accuracy and response time) as dependent variables, 35 college athletes were selected as subjects, 20 as experimental group and 15 as control group. Time series longitudinal experiment design. Results the main effect of the test time was significant (P 0.001). The main effect of the group was 44.55% (P 0.001), 畏 (0.57) (P 0.001). The test time and the interaction between the test time and the group were 22.72t P 0.001, and the accuracy rate of the fatigue group was significantly different in different periods. The accuracy of fatigue group was significantly different from that of the fatigue group (F ~ 342O ~ (35.83P) 0.001, 畏 _ 2o _ 2 ~ (0.73) P _ (0.001)). There were significant differences in different time intervals (P 0.001, 畏 n 2n 0.68). Except for the RR interval of sinus beats, there was a significant difference between RPE and et. There was a significant positive correlation between et and RPE in low frequency, high frequency, high frequency, and high frequency ratio in heart rate variability of et and heart rate variability (HRV) in different time periods (P < 0. 05, P 0. 05, P 0. 001, P = 0. 001, P = 0. 001, n = 0. 68, P = 0. 05, P = 0. 05, P = 0. 05, P = 0. 05). There was no significant correlation between RMS SDD (RMSSD) and RMSSD (RMSSD) of RMS, and there was a moderate positive correlation between RMSSDET and the reaction time, and there was no significant correlation between RMS SDD and RMSSDET, and there was no significant correlation between RMS SDD and RMSSD. There was no significant correlation between accuracy and accuracy. In addition, there was a positive correlation between correct rate and response time. Conclusion Flanker task for 1 hour can induce central fatigue, and 31D 45 min can be used as stress period (46 ~ 60 min) as severe fatigue phase. Central fatigue induced by cognitive tasks in laboratory can cause neurotransmitter changes and this change can be correlated with HRV index, behavioral index and RPE test results. The above indexes can be comprehensively used to evaluate athletes' central fatigue.
【作者單位】： 寧波大學體育學院;甘肅省靜寧縣阿陽實驗學校;
【基金】：寧波大學《運動心理理論與應(yīng)用》課程建設(shè)(項目編號:ZDKC2014003) 浙江省大學生科技創(chuàng)新活動暨新苗人才計劃(項目編號:2015R405079)
【分類號】：R87

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